2003-11-12 Marco Gerards <metgerards@student.han.nl>

* disk/i386/pc/biosdisk.c (pupa_biosdisk_open): Correctly check
	for available extensions.

	* include/pupa/i386/pc/time.h: New file.
	* kern/disk.c: Include <pupa/machine/time.h>.
	(PUPA_CACHE_TIMEOUT): New macro.
	(pupa_last_time): New variable.
	(pupa_disk_open): Flush the cache when there was a timeout.
	(pupa_disk_close): Reset the timer.
	* kern/i386/pc/startup.S (pupa_get_rtc): Renamed from
	pupa_currticks.
	* util/misc.c: Include <sys/times.h>
	(pupa_get_rtc): New function.

kern/i386/pc/startup.S

@@ -2,6 +2,7 @@
  *  PUPA  --  Preliminary Universal Programming Architecture for GRUB
  *  Copyright (C) 1999,2000,2001,2002 Free Software Foundation, Inc.
  *  Copyright (C) 2002,2003  Yoshinori K. Okuji <okuji@enbug.org>
+ *  Copyright (C) 2003 Marco Gerards <metgerards@student.han.nl>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -1492,11 +1493,11 @@ gottime:
 
 	
 /*
- * pupa_currticks()
+ * pupa_get_rtc()
  *	return the real time in ticks, of which there are about
  *	18-20 per second
  */
-FUNCTION(pupa_currticks)
+FUNCTION(pupa_get_rtc)
 	pushl	%ebp
 
 	call	prot_to_real	/* enter real mode */